Well, in truth, 465 hours. It is just that we pay a premium for OEM. And we know that JD does not make their own belts. so who makes them? Oregon would make a good replacement part. But your point is well taken.
For less than half price, its worth a try. Even if you get one year out of it anf have to buy the OEM the next year. You might win with the belt or you might break even. I like OEM stuff, but on a belt, I might try one that was 1/2 off!